The Japanese software market is really attractive in the eyes of Vietnamese software outsourcing firms, but Vietnamese firms always have to struggle to penetrate the lucrative market. According to Vinasa (Vietnam Software and IT Service Association), up to 80 percent of Vietnamese firms consider Japan as the core market when doing the outsourcing for foreign partners. Of these, only five percent of businesses has been exploiting the Japanese market, 20 percent of businesses consider Japan as the main market, and 55 percent consider Japan as one of their main markets.